Description and features
Vesthiol PETMP (Pentaerythritol Tetra(3-mercaptopropionate), or PETMP) is a high-purity, multifunctional thiol compound that plays a key role as a stabilizer and chain transfer agent in the polymer and chemical industries. Moreover, featuring four reactive mercaptopropionate groups attached to a pentaerythritol core, it effectively prevents oxidative degradation caused by heat, light, and oxygen. As a result, it enhances the stability, durability, and chemical resistance of polymers, coatings, adhesives, and elastomers.
Moreover, Vesthiol PETMP serves as a valuable crosslinking agent and curing accelerator, improving product longevity and performance. Thanks to its excellent solubility and broad compatibility, it also supports pharmaceutical synthesis and fine chemical production, enabling manufacturers to achieve reliable and efficient processes.
Synonyms
PETMP, Pentaerythritol tetrakis(3-mercaptopropionate), Polythiol.
Availability
Europe: Vesthiol PETMP is in stock in our local warehouse. Our lead time is about one week if delivered in 200 KG steel drums.
We can also serve Canada, South America, South Africa, and other markets. Please contact our sales department for more details.
This substance (CAS 7575-23-7) has been registered (FULL) under REACH (EC) 1907/2006.
Product Identification
| CAS number | 7575-23-7 |
| EC number | 231-472-8 |
| HS code | 2930.90.9250 |
| IUPAC name | 3-[(3-sulfanylpropanol)oxy]-2,2-bis({[(3-sulfanylpropanol)oxy]methyl})propyl 3-sulfanylpropanoate |
Specification
| Appearance | Colourless transparent liquid |
| Colour | Clear to pale yellow |
| Odor | Mercaptan-like (typical thiol odor) |
| Water content (ppm) | ≤ 800 |
Key features
- Rapid crosslinking under UV or thermal conditions
- Enhances flexibility and toughness
- Strong adhesion to a variety of substrates
- Low VOC, suitable for solvent-free formulations
- Compatible with thiol-ene, thiol-acrylate, and thiol-epoxy systems
Packaging
Available packaging: 25 KG drums, 200 KG drums, or IBCs
Special packaging is available on request.
Storage
Store Vesthion PETMP in a cool, well-ventilated place away from heat and direct sunlight. Keep the container tightly closed and under nitrogen. Lastly, store this product always in a container made of the same material as the original container.
MSDS
A Material Safety Data Sheet (MSDS) is available for Vesthion PETMP and all other products supplied by Vesta Chemicals BV.
An MSDS outlines the hazards of a product and explains how to handle, use, and store the product safely. Besides it provides important regulatory and emergency response information for the purchased product.
Molecular and structural information
| Molecular formula | C17H28O8S4 |
| Molecular weight | 504.69 g/mol |
| Smiles notification | SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS |
| Inchey key | JOBBTVPTPXRUBP-UHFFFAOYSA-N |
| Chemical formula |  |
Physicochemical information
| Boiling point | > 200ºC (decomposes) |
| Density (25ºC) | ~1.24 g/cm3 |
| Flash point | ~150ºC (closed up) |
| Refractive index | ≥ 1.5290 |
| Viscosity (25ºC) | ~ 15,000 – 35,000 cP |
| Funtionality | 4 Thiol (-SH) groups |
| Solubility | Soluble in organic solvents,immiscible with water |